Mt bigsky, one reason for that MAY POSSIBLY be that there were dollar amounts in the PR, although, i'd bet that 5 aerostats with the other items cotracted/purchased, described in yesterday's PR, match or beat the $600K dollar amount for those 2 in April.
Another reason is, crooked MM's. If they don't "allow" the s/p to move up, then it very likely will NOT move up.
All JMHO